Horizon Alert
Summary of the vulnerability and why it matters
The authentik identity provider contains a vulnerability within its Simple Flow Executor (SFE) that could allow for cross-site scripting (XSS) attacks. This flaw arises from the implementation of stages designed to support older web browsers. If exploited, an attacker could potentially inject malicious scripts, impacting user sessions and data integrity.
- Vulnerable authentik SFE component
- Cross-site scripting flaw
- Compromised user sessions and data
Attack Path
How an attacker could exploit the issue
The vulnerability allows an attacker to inject malicious scripts into a web application by exploiting the AutosubmitStage within the Simple Flow Executor. This stage, designed for legacy browser compatibility, can be leveraged to execute cross-site scripting (XSS) payloads. The attack path begins with an organization's system being exposed to the internet. An attacker then gains an entry point and triggers the vulnerability through user interaction, resulting in unauthorized access and potential compromise of sensitive data.
- Public exposure is required.
- Attacker uses a web browser.
- Trigger injects malicious scripts.
Live Threat
Current exploitation, exposure, and threat context
A vulnerability exists in authentik, an open-source identity provider, that could allow for cross-site scripting (XSS) attacks. This exploit could impact organizations by compromising user data and potentially leading to unauthorized access. The issue has been addressed in recent versions of the software.
- Attackers with low skill levels.
- Requires user interaction.
- High business risk.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability allows for cross-site scripting (XSS) within the AutosubmitStage of the SFE. An attacker could exploit this to inject malicious scripts, potentially leading to the compromise of user data or unauthorized actions. Organizations utilizing the affected software should prioritize addressing this security risk to protect their systems and users.
- Identify all deployed instances of the affected software.
- Restrict external access to the affected system.
- Update to a patched version and verify the fix.
